The opposite of unfinished (incomplete) would be finished (completed or ended).
The opposite (or antonym) of "unfinished" is "complete" or "finished."
incomplete, undone, unfinished, unperfected
There are 3 syllables in the word unfinished
Unfinished.
Unfinished Tales was created in 1980.
The Unfinished Revolution was created in 2001.
An Unfinished Race was created in 1873.
Unfinished Sympathy was created in 1990.
An Unfinished Journey was created in 1986.
Unfinished Picture was created in 1973.
Unfinished Revolution was created in 1987.
The Unfinished Symphony was created in 2005.